Robert Conrad, Ross Martin. A special blend of sci-fi with the Old West makes for some pretty amazing stuff as Secret Service agents James T. West and Artemus Gordon have a go at it one last time in this fourth and final season of the popular '60s show. Includes The Night of the Doomsday Formula" (10/4/68), The Night of the Plague" (4/4/69) and 22 more for a total of 24 episodes on 6 DVDs. 1968-69/color/20 hrs., 16 min/NR/fullscreen.